Camshaft phaser
AssigneeSchaeffler Technologies AG & Co. KG
InventorAli Bayrakdar
Life of this patent
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Abstract
A camshaft phaser, including a stator (1) that can be driven via a crankshaft of an internal combustion engine, and a rotor (2) that can be non-rotatably joined to a camshaft of the internal combustion engine, and a torsion spring (5) that has helical windings and that acts between the rotor (2) and the stator (1) and whose first radially inner end (7) is directly or indirectly joined to the rotor (2), and whose second radially outer end (8) is directly or indirectly joined to the stator (1), whereby a central, axially protruding pipe section (19) associated with the rotor (2) is provided, and the first end (7) of the torsion spring (5) is non-rotatably affixed with a positive fit to the pipe section (19).
Claims10
A camshaft phaser comprising:
- a stator drivable by a crankshaft of an internal combustion engine;
- a rotor non-rotatably joinable to a camshaft of the internal combustion engine and having a central opening;
- a torsion spring having helical windings and acting between the rotor and the stator, the torsion spring having a first radially inner end directly or indirectly joined to the rotor, and a second radially outer end directly or indirectly joined to the stator;
- and
- a pipe extending through the central opening and having a central, axially protruding pipe section associated with the rotor, the first end of the torsion spring being non-rotatably affixed with a positive fit to the pipe section, wherein the pipe section conveys a pressure medium.
Dependencies are inferred from the claim text.